# Schottky Rectifier, 45 V, 15 A, Dual Common Cathode, TO-220AB, 3 Pins, 570 mV

![Product image](https://novapart.co/image/farnell:9803386/)

**URL**: https://novapart.co/products/STPS1545CT/schottky-rectifier-45-v-15-a-dual-common-cathode
**SKU**: STPS1545CT
**Manufacturer**: STMICROELECTRONICS
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Schottky Diodes || Schottky Rectifier Diodes
**Price**: €0.2180
**Stock**: 1000+
**Lead Time**: 120 days (indicative)

## Description

Repetitive Reverse Voltage Vrrm Max:45V; Forward Current If(AV):7.5A; Diode Configuration:Dual Common Cathode; Diode Case Style:TO-220AB; No. of Pins:3Pins; Forward Voltage VF Max:570mV; For

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 3Pins |
| Product Range | - |
| Qualification | - |
| Diode Mounting | Through Hole |
| Diode Case Style | TO-220AB |
| Diode Configuration | Dual Common Cathode |
| Forward Voltage Max | 570mV |
| Forward Surge Current | 150A |
| Average Forward Current | 15A |
| Operating Temperature Max | 175°C |
| Repetitive Peak Reverse Voltage | 45V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:9803386/)

## **STPS1545C** 

## Power Schottky rectifier 

Datasheet - production data 

**==> picture [199 x 241] intentionally omitted <==**

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A1<br>K<br>A2<br>aS<br>K<br>K<br>A1K A2 A2<br>K<br>A1<br>TO-220AB I2PAK<br>K<br>K<br>A2<br>ee A2<br>A1<br>A1<br>D2PAK<br>**----- End of picture text -----**<br>


## **Description** 

Dual center tap Schottky rectifier suited for switch mode power supply and high frequency DC to DC converters. 

Packaged either in TO-220AB and D[2] PAK, this device is especially intended for use in low voltage, high frequency inverters, free wheeling and polarity protection applications. 

**Table 1: Device summary** 

|**Symbol**|**Value**|
|---|---|
|IF(AV)|2 x 7.5 A|
|VRRM|45 V|
|Tj(max)|175 °C|
|VF(typ)|0.5 V|



## **Features** 

- Very small conduction losses 

- Negligibile switching losses 

- Extremely fast switching 

- Avalanche capability specified 

- ECOPACK[®] 2 compliant component for D²PAK on demand 

February 2016 

DocID3503 Rev 8 

1/13 

This is information on a product in full production. 

_www.st.com_ 

**Characteristics** 

**STPS1545C** 

## **1 Characteristics** 

**Table 2: Absolute ratings (limiting values, per diode, at 25 °C, unless otherwise specified)** 

|**Symbol**|**Parameter**|**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|---|
|VRRM|Repetitivepeak reverse voltage|||45|V|
|IF(RMS)|Forward rms current|||20|A|
|IF(AV)|Average forward current<br>δ = 0.5, square wave|TC= 157 °C|Per diode|7.5|A|
|IFSM|Surge non repetitive<br>forward current|tp = 10 ms sinusoidal||150|A|
|PARM|Repetitive peak<br>avalanchepower|tp= 10 µs, Tj= 125 °C||190|W|
|Tstg|Storage temperature range|||-65 to + 175|°C|
|Tj|Maximum operating junction temperature_(1)_|||+ 175|°C|



## **Notes:** 

(1)(dPtot/dTj) < (1/Rth(j-a)) condition to avoid thermal runaway for a diode on its own heatsink. 

**Table 3: Thermal parameters** 

|**Symbol**|**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|
|Rth(j-c)|Junction to case|Per diode|3.0|°C/W|
|||Total|1.7||
|Rth(c)|Coupling|-|0.35|°C/W|



When the diodes 1 and 2 are used simultaneously: 

ΔTj (diode1) = P(diode1) x Rth(j-c) (per diode) + P(diode2) x Rth(c) 

**Table 4: Static electrical characteristics (per diode)** 

|**Symbol**|**Parameter**|**Test conditions**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|---|
|IR_(1)_|Reverse leakage current|Tj= 25 °C|VR= VRRM|-||100|µA|
|||Tj= 125 °C||-|5|15|mA|
|VF_(1)_|Forward voltage drop|Tj= 125 °C|IF= 7.5 A|-|0.5|0.57|V|
|||Tj= 25 °C|IF= 15 A|-|-|0.84||
|||Tj= 125 °C|IF= 15 A|-|0.65|0.72||



## **Notes:** 

- (1)Pulse test: tp = 380 µs, δ < 2% 

To evaluate the conduction losses use the following equation: 

P = 0.42 x IF(AV) + 0.020 IF[2] (RMS) 

2/13 

DocID3503 Rev 8 

**STPS1545C** 

**Characteristics** 

## **1.1 Characteristics (curves)** 

**==> picture [462 x 566] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 1: Average forward power dissipation  Figure 2: Average forward current versus ambient<br>versus average forward current (per diode)  temperature (δ = 0.5, per diode)<br>PF(AV)(W) IF(AV)(A)<br>6 9<br>δ = 0.1 δ = 0.2<br>δ = 0.5 8 Rth(j-a)=R th(j-c)<br>5 δ = 0.05<br>7<br>4 6 Rth(j-a) =40°C/W Rth(j-a) =15°C/W<br>δ = 1 5<br>3<br>4<br>2 3<br>T T<br>2<br>1<br>1<br>IF(AV)(A) δ [=tp/T] tp δ [=tp/T] tp Tamb (°C)<br>0 0<br>0 1 2 3 4 5 6 7 8 9 10 0 25 50 75 100 125 150 175<br>Figure 3: Normalized avalanche power derating  Figure 4: Relative variation of thermal impedance<br>versus pulse duration (Tj = 125 °C)  junction to case versus pulse duration<br>PARM(tp) Zth(j-c ) /Rth(j-c)<br>1 PARM(10 µs) 1.0<br>0.8<br>0.1<br>0.6<br>δ = 0.5<br>0.4<br>0.01<br>0.2 δ = 0.2 T<br>0.001 t p(µs) Single pulseδ = 0.1 tp(s) δ [=tp/T] tp<br>1 10 100 1000 0.0<br>1E-4 1E-3 1E-2 1E-1 1E+0<br>Figure 5: Reverse leakage current versus reverse  Figure 6: Junction capacitance versus reverse<br>voltage applied (typical values, per diode)  voltage applied (typical values, per diode)<br>IR(µA) C(pF)<br>5E+4 1000<br>F=1MHz<br>1E+4 T =150°Cj VOSC=30mV RMS<br>T =25°Cj<br>T =125°Cj<br>1E+3 500<br>T =100°Cj<br>1E+2 T =75°Cj<br>T =50°Cj<br>1E+1<br>T =25°Cj 200<br>1E+0<br>VR(V) VR(V)<br>1E-1 100<br>0 5 10 15 20 25 30 35 40 45 1 2 5 10 20 50<br>**----- End of picture text -----**<br>


DocID3503 Rev 8 

3/13 

**Characteristics** 

**STPS1545C** 

**Figure 7: Forward voltage drop versus forward current (per diode)** 

**==> picture [424 x 167] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 7: Forward voltage drop versus forward  Figure 8: Thermal resistance junction to ambient<br>current (per diode)  versus copper surface under tab for D²PAK<br>IFMA) Rth(j-a) (°C/W)<br>80<br>D²PAK<br>——Kt= Sa Seee eeaet Ae a ed | 70 eeOO|<br>wpe) eo 60 a<br>Loreen aee ee<br>50<br>(|| | NET re) |  AS<br>_——————— A Ge eG<br>40<br>———— NSSSee<br>atpa maximum values 30 |feetPpp P | |.<br> mine ttt ee<br>Pi tei zs | tt | 20 a<br>SSoooSS AS AE SS SS CS CO 10 K+ $44 Epoxy printed board FR4, eCU= 35 µm<br>See ee eeee<br>0<br>pfifete te Vem) Tot a<br>0 5 10 15 20 25 30 35 40<br>LL LE IT PTT TT |<br>SCu(cm²)<br>**----- End of picture text -----**<br>


4/13 

DocID3503 Rev 8 

**STPS1545C** 

**Package** information 

## **2 Package information** 

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK[®] packages, depending on their level of environmental compliance. ECOPACK[®] specifications, grade definitions and product status are available at: _**www.st.com**_ . ECOPACK[®] is an ST trademark. 

- Cooling method: by conduction (C) 

- Epoxy meets UL 94,V0 

- Recommended torque value: 0.55 N·m (for TO-220AB) 

- Maximum torque value: 0.7 N·m (for TO-220AB) 

DocID3503 Rev 8 

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**STPS1545C** 

**Package** information 

## **2.1 D²PAK package information** 

**Figure 9: D²PAK package outline** 

This package drawing may slightly differ from the physical package. However, all the specified dimensions are guaranteed. ~~©~~ 6/13 DocID3503 Rev 8 

**STPS1545C** 

**Package** information 

**Table 5: D²PAK package mechanical data** 

|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|
||**Millimeters**||**Inches**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A|4.36|4.60|0.172|0.181|
|A1|0.00|0.25|0.000|0.010|
|b|0.70|0.93|0.028|0.037|
|b2|1.14|1.70|0.045|0.067|
|c|0.38|0.69|0.015|0.027|
|c2|1.19|1.36|0.047|0.053|
|D|8.60|9.35|0.339|0.368|
|D1|6.90|8.00|0.272|0.311|
|D2|1.10|1.50|0.043|0.060|
|E|10.00|10.55|0.394|0.415|
|E1|8.10|8.90|0.319|0.346|
|E2|6.85|7.25|0.266|0.282|
|e|2.54 typ.||0.100||
|e1|4.88|5.28|0.190|0.205|
|H|15.00|15.85|0.591|0.624|
|J1|2.49|2.90|0.097|0.112|
|L|1.90|2.79|0.075|0.110|
|L1|1.27|1.65|0.049|0.065|
|L2|1.30|1.78|0.050|0.070|
|R|0.4|typ.|0.015||
|V2|0°|8°|0°|8°|



DocID3503 Rev 8 

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**STPS1545C** 

**Package** information 

**Figure 10: D²PAK recommended footprint (dimensions in mm)** 

## **2.2 I²PAK package information** 

**Figure 11: I²PAK package outline** 

~~>~~ 8/13 DocID3503 Rev 8 

**STPS1545C** 

**Package** information 

## **Table 6: I²PAK package mechanical data** 

|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|
||**Millimeters**||**Inches**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A|4.40|4.60|0.173|0.181|
|A1|2.40|0.72|0.094|0.107|
|b|0.61|0.88|0.024|0.035|
|b1|1.14|1.70|0.044|0.067|
|c|0.49|0.70|0.019|0.028|
|c2|1.23|1.32|0.048|0.052|
|D|8.95|9.35|0.352|0.368|
|e|2.40|2.70|0.094|0.106|
|e1|4.95|5.15|0.195|0.203|
|E|10.00|10.40|0.394|0.409|
|L|13.00|14.00|0.512|0.551|
|L1|3.50|3.93|0.138|0.155|
|L2|1.27|1.40|0.050|0.055|



Mounting (soldering) the I[2] PAK metal slug (heatsink) with alloy, like a surface mount device, IS NOT PERMITTED. A standard through-hole mounting is mandatory. 

DocID3503 Rev 8 

9/13 

**STPS1545C** 

**Package** information 

## **2.3 TO-220AB package information** 

**Figure 12: TO-220AB package outline** 

**==> picture [406 x 544] intentionally omitted <==**

10/13 

DocID3503 Rev 8 

**STPS1545C** 

**Package** information 

**Table 7: TO-220AB package mechanical data** 

|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|
||**Millimeters**||**Inches**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A|4.40|4.60|0.173|0.181|
|b|0.61|0.88|0.240|0.035|
|b1|1.14|1.70|0.045|0.067|
|c|0.48|0.70|0.019|0.028|
|D|15.25|15.75|0.600|0.620|
|D1|1.27 typ.||0.050 typ.||
|E|10.00|10.40|0.394|0.409|
|e|2.40|2.70|0.094|0.106|
|e1|4.95|5.15|0.195|0.203|
|F|1.23|1.32|0.048|0.052|
|H1|6.20|6.60|0.244|0.260|
|J1|2.40|2.72|0.094|0.107|
|L|13.00|14.00|0.512|0.551|
|L1|3.50|3.93|0.138|0.155|
|L20|16.40 typ.||0.646 typ.||
|L30|28.90 typ.||1.138 typ.||
|θP|3.75|3.85|0.148|0.152|
|Q|2.65|2.95|0.104|0.116|



DocID3503 Rev 8 

11/13 

**Ordering** information 

**STPS1545C** 

## **3 Ordering information** 

**Table 8: Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty**|**Delivery mode**|
|---|---|---|---|---|---|
|STPS1545CT|STPS1545CT|TO-220AB|1.95g|50|Tube|
|STPS1545CR|STPS1545CR|I2PAK|1.5g|50|Tube|
|STPS1545CG-TR|STPS1545CG|D2PAK|1.38g|1000|Tape and reel|



## **4 Revision history** 

**Table 9: Document revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|Jul-2003|5F|Last release.|
|21-Mar-2007|6|Removed ISOWATT and TO-220FPABpackages.|
|03-Nov-2010|7|Added DPAKpackage|
|26-Feb-2016|8|Removed DPAK package.<br>Updated features and packages silhouette in cover page.<br>Updated_Section 1: "Characteristics"_and_Section 1.1: "Characteristics_<br>_(curves)"_.<br>Updated_Section 2.1: "D²PAK package information"_.|



12/13 

DocID3503 Rev 8 

**STPS1545C** 

## **IMPORTANT NOTICE – PLEASE READ CAREFULLY** 

STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. 

Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. 

No license, express or implied, to any intellectual property right is granted by ST herein. 

Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. 

ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. 

Information in this document supersedes and replaces information previously supplied in any prior versions of this document. 

- © 2016 STMicroelectronics – All rights reserved 

DocID3503 Rev 8 

13/13 



## Links

- [View this product on Novapart](https://novapart.co/products/STPS1545CT/schottky-rectifier-45-v-15-a-dual-common-cathode)
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- [Supplier page](https://es.farnell.com/stmicroelectronics/stps1545ct/diode-schottky-2x7-5a-35v/dp/9803386)
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